19/11/2018 Respiration.

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Presentation transcript:

19/11/2018 Respiration

Respiration 19/11/2018 A while ago we learnt about ___ ______. Each of these life processes needs ENERGY. ___________ is the process our bodies use to produce this energy: Glucose + oxygen water + carbon dioxide + ENERGY The glucose we need comes from ______ and the oxygen from _________. Water and carbon dioxide are breathed out. The MAIN product of this equation is _________. Words – breathing, energy, Mrs Gren, respiration, food

Gas Exchange Air breathed in Air breathed out 0.03% 3% 21% 18% 79% 79% 19/11/2018 Air breathed in Air breathed out 0.03% 3% 21% 18% 79% 79%

19/11/2018 Breathing

The Respiratory System 19/11/2018 The Respiratory System

Gas exchange Alveoli are very good at exchanging gases because… 19/11/2018 Alveoli are very good at exchanging gases because… They have a LARGE surface area They have a good blood supply They are moist

Circulation 19/11/2018 1) Blood gets pumped from the heart to the lungs and picks up oxygen 2) The blood is then taken back to the heart… 3) The heart pumps the blood to the intestine (where oxygen and glucose are removed)… 5) After the oxygen and glucose have been removed for respiration the blood is sent back to the heart and starts again 4) … and to the rest of the body (where oxygen is removed)

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